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Polar bears are inbreeding due to melting sea ice, posing risk to survival of the species, scientists say - ABC News
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Polar Bear Stands on Melting Ice Sheet because of the Global Warming Stock Illustration - Illustration of north, global: 159405050
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Polar bears across the Arctic face shorter sea ice season – Climate Change: Vital Signs of the Planet
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Arctic ice loss forces polar bears to use four times as much energy to survive – study | Arctic | The Guardian
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Opinion | The Arctic's ice is thinning faster than expected. It's an ominous sign. - The Washington Post
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Polar bears may be extinct by 2100 if Arctic ice melts at projected rate, according to new study - ABC News
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